Box or the like



E. RONTGEN BOX OR THE LIKE FilegJuly 29, 19724 INVENTOR E. Bzze'fz/ BY /v f v ATTORNEYS Patented July '6, 1925.

ERNST RNTGEN, OF TURMITZ, CZECHOSLOVAKIA.

:BOX 01?. THE LKE.

Application filed Julyl, 1924, Serial No. 728,97l, and in Czechoslovakia August 10, 1923.

This invention relates to a nailless closure for boxes and the like. A box closed according to the invention is shown in Figure l o1" the accompanying drawing.

Figures 2 and 3 are detail views.

rEhe walls 1 are tenoned together' or rigidly connected together in some other suitable manner. In the bore holes or in grooves open inwards of Vthe said walls are arranged several bolts 3 provided with screw-thread at the upper end, and with round heads 4f at their lower ends passing through the bottom 2, the box resting on the said heads. One bolt 3 is provided in each corner, and one or more in each wall ot the box.

The cover or lid 5 has bore holes which are concentric with the bolts 3 and have a larger inside diameter so that the nuts G provided with round heads and intended 'to be screwed on the bolts 3 can be introduced into the said holes in a loosely rotatable manner. One of the said nuts-@His made of prisinatic shape outside, and its tapped hole is carried right through the round head 71 (Figure 3). rlhe other nuts 6 have merely a prismatic projection or boss 6 under the round head, but lor the-rest may be made cylindrical. rlhe tapped hole is not carried through the round head 7.

Another part of the closing device is constituted by a number or" flat metal strips, for instance strips 8, the respective ends of each of which are provided with openings the diameter ot which corresponds to the diameter of the bolts 8 while the number of the strips correspondwith the number of the bolts employed. Gn one of the said metal strips-S-both openings are round or so dimensioned that the nuts 6, 61 can loosely rotate in them; on each of the other metal strips one opening is round, whilst the other opening is square or polygonal to suit exactly the shape of the boss 6a.

The closing of the boxes is effected according to the invention in the following manner: First thev strip S1 is placed in its position on the edge of the cover put on the box. One of the nuts 6, 7 is thereupon introduced into the angular opening oi' one of the strips 8, in such a manner that it is mounted in a non-rotatable manner owing to the projection or boss 6a, in the opening in question, and the nut G, 7 is screwed on the bolt 3, the strip 8 being utilized as a lever. The strip 8 is brought into the position of rest in which its round opening is concentric with the next bolt The next nut 6, 7 is then iirst introduced through the angular opening or" the next strip 8 and then through the round Yopening of the strip 8 which isV already adhering to the end of the cover, and the nut is screwed on in the same way by means of the strip 8. The same proceeding is followed until a frame of overlapping metal strips is producedv along the whole upper edge of the cover.

The end piece otl the closing device is constituted by the nut 71. To enable the same to be screwed in, a spanner 9 mane to tit exactly its outline, is placed on its round head 7 and pressed by means of a screw bolt 10 provided with a thumb nut. W hen the nut 61, 71 has been suiiCiently tightened, the bolt l0 and the Spanner 9 are removed.

The closing device can be opened only by means of a spanner fitting exactly the head 71; an additional security against opening could be provided by a slide l1 which has a recess constituted by a narrower and a wider portion, with which engages the nut 61 or the bolt 3. The slide ll is adjustable at rightangles to the axis oi the bolt 3 in the wall of the box, it .is extended outwards and turned over the edge of the wall of the box, so that its part 111 bent at a right angle forms an inscription tablet and can be secured .by means of a screw l2 or the like. By moving the plate ll, lll in such a manner as to bring the angular nut 61 into the narrower portion of the recess, the nut will be prevented from turning, and in that way the whole closing device additionally protected from opening.

l claim 1. A nailless closure for covered boxes and the like, comprising in combination a plurality of elongated headed and threaded bolts extending upwardly through the box from the bottom to the cover, a plurality of headed nuts engaged through the cover with the bolts, a plurality oia strips arranged in .overlapping relation and engaged by the nuts, one ot the nuts being provided with means to facilitate fastening and unfastening ot the saine, and cooperative means on the nuts and remaining strips whereby 0pposite portions ot the strips may be successively employed to tasten or untasten the corresponding nuts, substantially as and for the purposes set forth.

2. A device as claimed 1n .claim l, wherein llO the inain Atastening' and closure nut is provided adjacent the head with a rounded portion and wherein the upp strip engaged by the saine provided in its respect've ends with openings 'lor loose engagement with the said closure nut and the adjacent nut, the remainingv strips beinte provided with a squared opening at one end and a round opening at the other end, and the renraining)r nuts beingprm'ided with squared portions adjacent t ie heath the squared .portions and the squared openings constituting a cooperative engaging ineansi between the strips and the nuts.

3. A nailless closure Vfor covered boxeo and the like eonigrisinnv a plurality.' orti round headed and screw threaded bolts extending upwar ll),Y through t ie box troni the bottoni to the Cover, a pluralitav ot' round headed nuts loosel;v rotatable in the holes in the Cover, plurality ot' tlat nietal strips arranged to overlap eaoh other along the entire edge of the cover on its upper facety one ol said strips conetitutinfg` the closing' part of the chain and eaeh ot the remaining strips being non-rotatably Connected to one round headed nut provided at its other end with an openingY in .which the round headed nut ot' the `adjoining` screw bolt can turn looeelv, the strip 'forming' the closing; part ot the strip ehain being;` provided at both ends with openings allowing of a loose rotation of the round headed nuts wherebv each single inetal strip with the exception ol" the closing;- strip can be used as a lever for screwingT in a round headed nut before the next round headed nut is introduced through its free opening .and screwed on the next screw bolt, yand unserewing;i the former nut after the latter nut has heen reinoved roin the free opening.

4. A closing` device as claiined in elai'in 3,

wherein the round headed nut establishing a .tinal closure oropening is loosely 'fastened in the openings ot the adjacent overlapping strips and is provided with means for receivino` special tool so to 'facilitate the tastenur and untastenine ot' the saine.

A Closing device as claimed in elaini f3, wherein the nut establishing the tinal closing and 'tasteninl is provided in addition to the round head with a hole aeeessible i'roni the outside and provided vitli threads extend inf-j in the saine direction oi the bolts with which it is engaged, a spanner adapted to be titted over the he d of the nut, and a thumb-screw adapted to be engaged in the threaded hole in the head 'lor clamping the Spanner in sueh a position to Viacilitzce the fastening and .looeniiur` ot the sfaid closing:y nut.

G. A closing' device as claimed in claim 3, wherein a round headed nut is employed for establishing b tinal fastening otl the strips .and loeself.v rotatable in the openings ot the adjacent overlapping strips including; the closure stripr` the said closure nut being pro vvided with a round portion iinnie-diatel)v adjacent the head` a squared portion continuin;y 'troni the round portion. an angle ERNST RNTGEN. 

